Car-door.



No.846,126. PATENTEDMAR.5,1907.

. J. MONTGOMERY.

CAR DQOR. APPLICATION FILED FEB. 26,1906.

2 SHEETS-SHEET 1.

WITNESSES INVENTOR PATENTED MAR. 5, 1907.

J. MONTGOMERY.

CAR DOOR.

APPLIOATION FILED FEB.26,1906.

-2 SHEETS-SHEET 2.

WITNESSES g g; [4

1n: NORRL'; PETER s ca WASHINGTON, D. c.

UNITED STATES,

PATENT OFFICE;

CAR-DOOR.

Specification of Letters Patent.

Patented March 5, 1907'.

Application filed February 26,1906. Serial No. 302,961.

To all whom it may concern- Be it known that I, J OHN MONTGOMERY, a subject of the King of Great Britain, residing at Toronto, county of York, Province of Ontario, Canada, have invented a certain new and useful Improvement in OarDoors; and I declare the following to be a full, clear, and exact description of the same, such as will enable others skilled in the art to which it ertains to make and use the same, reference eing had to the accompanying drawings, which form a part of this specification.

This invention relates to car-doors. It has for its subject an improved grain-door for use on freight-cars.

One subject of the invention is a double door, of which the one section rests above and upon the other when the two parts of the door are in situation to close the opening through the side of the car.

Another subject is a door and means to cause it to engage closel against the post and hold it thereto forcib although either the one or the other may be more or less warped and sprung.

Another subject is means by which the door is easily and readily swung up against the roof of the car, leaving the sides of the door-opening entirely free and clear from all obstructions and from all parts projecting thereinto and leaving the space adjacent to the doors and post entirely free.

In the drawings, Figure 1 is a side elevation of a part of a car, showing the opening and the doors closing the same. Fig. 2 is a vertical cross-section illustrating the swing of the door. Fig; 3 is a horizontal crosssection through the door and the post. Fig. 4 is an enlarged view of the clamp-button. Fig. 5 is a reversed plan of the clamp-button; Fig. 6 is a plan of a right-handed clampbutton. Fig. 7 is a side elevation of a clampbutton. Fig. 8 is a perspective of a rodguide.

There are two sections to the door, an upper section 1 and a lower section 2. These are similar in construction and similar in action and are both hung from brackets 3, that are secured to the door-frame 4. The brackets are curved and provided with pivot-holes 5 and 6, of which the pivot-hole 6 is through a branch that extends toward the inside of the car and is higher than the crossbar of the door-frame. The pivot-hole 5 is through a branch that extends toward the outside and is underneath the top cross-bar of the Y door-frame and hangs out'beyond the inner wall surface of the .car. From the eye 6 of each bracket hangs a rod 7, that engages through a guide 8 on the inside of the upper section of the door. The door is adapted to slide upward along the rod, which projects through the guide and engages loosely therein. From the eye 5 of each bracket hangs a rod 9, which engages through a guide 10 on the outside of the lower door. The guides are bolted or otherwise secured to the door and have an opening for the engagement therethrough of the rod, which is narrow at the lower part (as they are assembled on the door) and widens upward, so that the door may have some freedom to rise and fall at either end without binding or cramping on the rods by which it is sus ended. To the front of each section of the 001 are secured buttons 11 and 12, (on the lower door.) These buttons are made right and left handed with a side out off, in order that when turned to the position shown in Fig. 1 they are out of holding engagement with the post, and when the buttons are thus arranged the door can be lifted or swung. WVhen, however, they are turned to the position shown in Fig. 3 or in Fig. 4, the buttons at each side engage under a plate 13,'which is secured to the post and lines the post from top to bottom.

For a short space on each post the corner of the post is cut away to furnish a cavity 14, into which the button is adapted to turn. The cavity 14 is preferably not a groove which runs from top to bottom of the post, but is a cavity which extends vertically only so far as may be sufficient to allow the button to turn properly and easily when the door is in its lowermost and closed position. That face of the button which lies toward the door and which engages against the plate 13 is cut as a cam-surface inclined from 11 to 11*. The button is held to the door by a bolt 16, on which it turns and which is held in place by j nut 17. Preferably the end of the bolt is riveted over the nut somewhat. the bolt is made with a pivot part 18 of larger diameter than the main shank 19 of the bolt, and the enlarged pivot part 18 engages as a head against the outer edge of the door or against the washer 20, interposed between it and the outer edge of the door, and the shoulder between the enlarged part 18 and the shank 19 prevents the bolt from being drawn down so closely against the button as to pre- Preferably vent its easy action and still allows the bolt to be used as a securing means to hold the facing-boards of the door and the cleat-boards 21 together.

In operation in closing the door the door is dropped into place, resting against the facing-plates 13 on the inside, and the buttons are turned into their sockets and the door is secure. In opening the door the small upper section is first opened by sliding the section of the door up on its hangers and swinging the door up against the roof and engaging it under a hook 22. The lower section of the door slides up on its hangers and is then swung up against the roof of the car and caught on the hooks 23. The door-opening is now entirely unobstructed on both sides from top to bottom.

What I claim is 1. In a car-door, in combination with a bracket at each end of the door-opening, each having arms extending in different directions, and having pivot-holes in the ends, rods pivoted at their ends therein and depending therefrom, there being one of said rods on each side of the plane of the door-openings, two independent door-sections slidably secured to said rods, one of said sections being adapted to reach below the other, and each being adapted to be slid toward the point of pivoting of its supportingrods and to be thereafter swung to a position of substantial perpendicularity to the plane of the door opening. 2. In a car-door, the combination of a plurality of systems of rods each pivotally supported from the frame of the door on one side of the plane of the door-opening, a plurality of door-sections slidably attached to each of the rods of one system, said sections being adapted when in use to hang in the same plane one above the other, and being adapted to be slid on said rods toward their points of pivoting and with them to be swung to a position of non-use just under the roof of the car, substantially as described.

3. In a car-door, in combination with a pair of door-sections adapted to hang one above the other when in use, a pair of pivotally-supported rods for each section, to which it is slidably attached, means by which said rods are supported whereby they and the section which they support are maintained at all times in different planes, and means carried by each of the sections and adapted to engage againstthe adjacent edges of the dooropening whereby it may be clamped in position with respect thereto, substantially as described.

4. In a car-door, the combination of a bracket having arms terminating in different planes with respect to the door-opening, a plurality of sets of rods, those of one set being longer than those of another, each pivotally depending from the ends of said arms, a pair of door-sections, each supported by one of said sets of rods and slidable with res ect thereto, clamping means on the lateral e ges of'said sections adapted to engage the adjacent edge of the door-frame, substantially as described.

5. In a car-door, in combination with the facing-posts of a door-opening, a plurality of door-sections adapted to stand one above another in the same vertical plane, a set of pivoted supporting-rods to which the internallyfacing surface of the upper of said sections is slidably attached, a second set of rods to which the external surface of the lower of said sectipns is similarly attached, each of said sec tions being adapted to be slid upon its rods towar d their point of pivoting and to be thereafter swung with them to a position of angularity with respect to their position of closure, and means carried near the lateral edges of each section adapted to engage against said facing- )osts to lock the sections in place across the ooropening, substantially as de scribed.

6. In a car-door, the combination of pivoted rods of two different lengths, two of the greater length being pivoted Within and two of the shorter length without the door-opening, and a pair of door-sections each slidably connected to one of the sets of rods, the lower section to the long rods and the upper section to the short rods, each section being adapted to be slid on its supporting-rods toward their points of pivoting and to be thereafter swung with them to a position of substantial parallelism beneath the car-roof, substantially. as described.

In testimony whereof I sign this specification in the presence of two witnesses.

JOHN MONTGOMERY.

WVitnesses ARTHUR V. TRIMBLE, ROBERT A. BALDWIN. 

